Here is what Garuda looks like at one particular font size: The font files are in the TrueType format that works on Windows XP (and beyond) and MacOS 10 computers. Sure, eventually, you'll need to be able to read many different Thai writing styles, but for someone who's just learning the Thai alphabet, they are an unnecessary impediment to progress! There is a very easy-to-read, familiar, free, public-domain Thai font called Garuda which you can download to your computer from this webpage and use to read.
The Thai fonts that come with Windows and MacOS are pretty hard to read, and differ a lot from typical Thai book fonts.
